8 Derwent Avenue, Hatch End, Pinner, Harrow, HA5 4QJ Data via plota.co.uk
Proposal
Front porch and relocation of entrance to front; single storey side to rear extension; creation of first floor to bungalow to form two storey dwellinghouse; first floor side extension; two front dormers and one rear; landscaping; external alterations Data via plota.co.uk
Application progress
This application is under consideration - no decision has been issued yet. Plota predicts a decision around 12 Nov 2026, from Harrow's recent extensions.
Documents 12
Statements & assessments 2
Plans & drawings 8
Application forms 1
Other documents 1
Site constraints 3
Checked on 24 September 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Every application in Harrow - and every UK council - as a live feed, an API, or a bulk CSV export.
Other new applications on this street
8A Derwent Avenue, Hatch End, Pinner, Harrow, HA5 4QJ
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27 Derwent Avenue, Hatch End, Pinner, Harrow, HA5 4QH
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15 Derwent Avenue, Hatch End, Pinner, Harrow, HA5 4QH
Single storey side to rear extension; front porch; single storey outbuilding in ...
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27 Derwent Avenue, Hatch End, Pinner, Harrow, HA5 4QH
Front porch, Bay window to ground floor front elevation, Relocation of entrance ...
76 Hillview Road, Hatch End, Pinner, Harrow, HA5 4PE
Replace garage door with window in front elevation; Single storey rear extension...
8A Derwent Avenue, Hatch End, Pinner, Harrow, HA5 4QJ
Single storey rear extension: 4.50 metres deep, 3.00 metres maximum height and 2...
91 Hillview Road, Hatch End, Pinner, Harrow, HA5 4PB
Non material amendment to planning permission PL/0656/26 dated 11/06/2026 to all...
Important details
Decision outlook
Day 17 of the 56-day target. Harrow usually decides extensions by day 56.
Plota live figures for extensions decided by Harrow in the last twelve months, from validation. Harrow decision record →
Consultation & key dates
- Statutory expiry
- 12 Nov 2026
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Harrow ranks #115 out of 296 councils for householder decision speed. Harrow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 83% approved vs 90% nationally.
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8 Derwent Avenue, Hatch End, Pinner, Harrow, HA5 4QJ
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